JWT Decoder

JWT Decoder is the ultimate developer utility for inspecting and analyzing JSON Web Tokens (JWT) with a focus on speed, privacy, and modern design. Built for developers and security researchers, JWT Decoder provides a clean, Material 3-powered interface to decode and understand authentication tokens without compromising data security. Key Features: • Privacy First: All tokens are processed 100% offline. Your sensitive data never leaves your device, and no tokens are sent to external servers. • Deep Analysis: Instantly decode and format the Header, Payload, and Signature of any JWT. • Smart History: Keep a local record of your decoded tokens. Browse, search, or clear your history with one tap. • Developer-Centric Tools: ◦ Auto-Format JSON: Pretty-print payloads for better readability. ◦ Secure Sharing: Generate and share analysis reports with built-in privacy warnings. ◦ Smart Import: Import tokens directly from text files or use the one-tap paste feature. • Modern UI: Fully optimized for Material 3 with adaptive Light and Dark modes. • Lightweight & Fast: Minimal footprint with zero latency, designed to fit into your professional workflow. Disclaimer: This application is a utility for developers. While it allows for deep inspection of JWT tokens, it does not replace the necessity of server-side cryptographic verification. The developer is not responsible for any security risks arising from the user's decision to share token contents or sensitive claims.